Which is an example of Phototropism?   A) roots of a plant following water B) plant bending toward the light C) roots growing into the soil D) a venus flytrap capturing a fly

Q: How Long Can Seeds Remain Viable in Dormancy?

A: The phase of an organism's lifespan in which processes, such as physical activities, development,…

Q: At which temperature pollen grains can be stored for several years in liquid nitrogen?

A: Pollen grains are produced inside the anther and come out of the anther and the dehiscence. Pollen…

Q: If green plants require light in order to produce food needed for growth, why are seedlings that are…

A: Plant hormones involve auxin, abscisic acid, ethylene, gibberellins, cytokinins, salicylic acid,…

Q: Photorespiration becomes more likely when a. CO2 concentrations are high in leaf cells. b. stomata…

A: Photorespiration, also known as the C2 pathway, is a process that occurs in the C3 plants where the…

Q: Rootsa. are the primary site of photosynthesis.b. give rise to new leaves and flowers.c. have a…

A: The part of the plant which is present underground normally is called root. It provides anchorage,…

Q: Difference between positive phototropism and negative prototropism?

A: Tropisms are either  positively or negatively  movements of the  organisms,parts of plants or organs…

Q: Does a shoot need to include a stem? Could a plant perform photosynthesis successfully with its…

A: plant anatomy-is the subject to study the internal parts & processes of plants.  photosynthesis…

Q: Guard cellsa. are found primarily on the upper surface of leaves.b. open their stomata by…

A: A specialized pair of plant cells that are responsible for the control of gaseous exchange in the…

Q: What is phototropism?

A: Introduction  In this question we have to explain phtototropism.

Q: What are the functions of light-harvesting andreaction center chlorophylls?

A: Introduction Light harvesting complexes are the complex or proteins and chlorophyll molecules which…

Q: Gas exchange occurs through microscopic pores formed by two (a) subsidiary cells (b) abscission…

A: Introduction Plants are autotrophs as they can synthesize their own food by photosynthesis. Plants…

Q: How do C4 plants minimize photorespiration?   Multiple Choice   Stomata are only opened at night,…

A: Photorespiration is a wasteful process. It causes a decrease in productivity of plant.

Q: Which of the following statements is TRUE concerning CAM plants? They close their stomata during the…

A: CAM stands for Crassulacean acid metabolism. It is found in the minimum water availablity…

Q: Explain how phytochrome is afected by red wavelengths of light.

A: Plants are the primary producer of nature. They absorb the environmental light conditions by the…

Q: Submerged plants receive lesser illumination as compared to exposed floating plants in a lake. Give…

A: The plants that are dipped in water and receive the nutrients through their leaves, not from roots…

Q: Stomata close in response to_______ . a. ABA c. bacterial flagellin b. nitric oxide d. all of the…

A: Step 1 Growth is an irreversible permanent increase in size, volume, and weight of a cell, part, or…

Q: What is geotropism and its example?

A: Plants are mainly multicellular organisms, predominantly photosynthetic eukaryotes of the kingdom…

Q: Photoperiodism is effected by which color of light?

A: Photoperiodism is the duration of light required by plants for photosynthesis.

Q: which of the following phytochemicals are considerd to provider vascular support? a. flavonoids and…

A: Phytochemicals are biologically active compounds, which are derived from plant products. These…

Q: Would primary and secondary growth ever occur simultaneously in the same plant?

A: Primary growth is related to the lengthening of roots and shoots whereas secondary growth includes…

Q: Studies of phototropism often use which part of an oat seedling: _________________?

A: Phototropism is the growth of an organism in response to a light stimulus. Phototropism is most…

Q: What would happen if you gave these plants a brief exposure to darkness in the middle of the…

A: Phytochrome is a receptor in a plant that accepts the red and far-red light coming from the sun. It…

Q: What are the effects of greenhouse in plants?

A: Greenhouse gases provide warmth and humidity which promotes plant growth.They also increase the rate…

Q: Would a defoliated plant respond to photoperiodic cycle? Why?

A: Light plays an important role in the development and growth of plants. Each plant requires a…

Q: Photosynthesis sustains plant growth, and inputs of sunlight sustain photosynthesis. Why, then, do…

A: Plants and other living things employ a process called photosynthesis to transform sunlight into…

Q: Name the predominant chlorophyll molecules in green plants.

A: Chlorophyll are the photosynthetic pigments present in all photosynthetic organisms. Chlorophylls…

Q: What is the function of the phloem?

A: Plant have tissue to transport water, minerals and nutrients. These are vascular parts of plant…

Q: For pineapple plants, the first step of carbon assimilation (incorporating atmospheric CO2 into a…

A: C4 plants are light-dependent plants that undergo the C4 photosynthetic pathway.  These plants are…

Q: In phloem, organic compounds flow through ______ .a. collenchyma cells c. vesselsb. sieve elements…

A: Organic compounds are the compounds that are a build-up of carbon and hydrogen. In plants, phloem…

Q: C4 plants differ from C3 plants because C3 plants while C4 plants gain CO2 via photorespiration;…

A: C3 plants are found in the temperate region and C4 plants are found in tropical regions. C4 plants…

Q: Movement of sugar within phloem from source to sink involves... Select all that apply.   Active…

A: Movement of sugar within phloem from source to sink involves:  Active transport Companion cell…

Q: why do leaves turn brow, red, and orange in the fall?

A: Leaves have a green pigment called chlorophyll, which helps in the process of photosynthesis. There…

Q: Herbicides that act by promoting photorespiration are lethalto C3 plants but do not affect C4…

A: C3 plants are the type of photosynthetic plants that are adapted to low temperature, whereas C4…

Q: Why is phloem transport considered an active process?

A: Plants are mainly multicellular plants that have ability to perform photosynthesis and belong to…

Q: germinate

A: The germination of the seeds should be done in following steps :-    1) use of fresh and soaked…

Q: Why is light important in the production of new plants from cuttings?

A: Plants are mainly multicellular organisms that are predominantly eukaryotic and photosynthetic and…

Q: Opening and closing of pores is a function performed by:         I.   Stomata       II.…

A: Stomata are cellular structures present in the epidermis of the leaves. They are involved in the…

Q: plant

A: 1. Pathway of carbondioxide fixation:  Carbondioxide fixation is the process of conversion of…

Q: how would misting a plant affect the transpiration rate?

A: If a plant is misted, then rate of transpiration will be slowed down because the moist environment…

Q: The main photoreceptor that triggers phototropism is a ________. a. phytochrome b. cryptochrome c.…

A: Photoreceptors are the retinal cells that respond to light. The presence of significant volumes of…

Q: What is greenhouse why is it harmful under ordinary circumstances?

A: The earth's climate is kept habitable for humans and millions of other species by the hate that is…

Q: What causes plants to burn easily?

A: Leaf scorch (also known as leaf burn, leaf wilt, and sun scorch) It is characterised by browning of…

Q: Which of the following statements is are TRUE? Ca pathway involves a single C02 fixation step. In…

A: CAM pathway is cruassulacean Acid metabolism which is an adaptation by plants that survive arid…

Plant sensory system

The plant sensory system is a sophisticated system that responds to environmental stimuli such as light,temperature, gravity, and touch. Research predicts that plant hormones and signaling mechanisms areresponsible for this regulation system in plants.